Feed-roll for spinning-machines.



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CHARLES R. SYLVANDER, OF TAUNTON, MASSACHUSETTS, ASSIGNOR TOMASON MACHINE WORKS, OF TAUNTON, MASSACHUSETTS, A CORPORATION OF MASSACHUSETTS.

FEED-ROLL FOR SPINNING-MACHINES.

Application filed January i3, 1917.

T aZZwwm it may concern:

Be it known that l, CHARLES R. SYLVAN- Y DER, a citizen of the United States, residing at Taunton, county of Bristol, State of Massachusetts, have invented an Improvement in Feed-Rolls for Spinning-liriachines,`

of which the following description, in connection with the accompanying drawing, is a specification, like characters on the drawing representing like parts.l

This invention relates to a feed roll for spinning or similar machines and its object y is to provide a roll made up of a plurality l provide a construction in which the bearing member shall be a separate member from the roll members and thus capable of being hardened or treated differently from the roll members as required by the conditions of The `object of the inventionis further to provide a construction in which the bearing members may be finished by grinding to a true shape and lit after the hardening operation.

|These and other objects of the invention will appear from the accompanying` description and drawings and will be particularly pointed out in the claim. y

AThe drawings show feed rolls embodying the preferred form of the invention in an ordinary type of spinning machine, only so much of the spinning machine as is necessary to disclosure ofthe invention being illustrated. y

In the drawings- Figure l is a top plan view of portions of three feed rolls `and a pair of bearings in a spinning machine; l

Fig. 2 is a view similar to Fig. 1 enlarged l and partially in horizontal cross section Specification of Letters Patent.

ratenteunpr. so, rai.

Serial No. 142,207.

showing the portion of a bearing of the spinning machine, a bearing member and the ends of two adjacent roll members;

Fig. 3 is a vertical cross section taken on the line 1-1 of Fig. 2;

Fig. 4 is a vertical cross section taken on the line 2 2 of F ig. 2;

Fig. 5 is a vertical cross section taken on the line 3 3 of Fig. 2;

Fig. 6 is a side elevation partially in vertical cross section of the bearing stand of the spinning machine and the feed rolls as shown `in Fig. l, but on a larger scale.

'lfhe ordinary spinning machine comprises a plurality of feed rolls, the lower usually of which are positively driven. These rolls extend throughout the length of the frame and are consequently of great length. They are made up of a plurality of members each having a plurality of roving or strand engaging zones and bearings are interposed at suitable points throughout the length of the rolls. The task of securing the roll members together into one continuous feed roll which should rotate without wabbling or irregularity of motion but on a single axis of rotation throughout has always been a difficult one and required much time and skill. Whenever a roll member was removed for .repair or renewal and replaced the careful The bearin members are made se arate from the roll members thus enabling the roll members readily to be removed and replaced, and enabling the bearing members to be hardened and treated independently of the roll members. y

In the construction illustrated the bearing stand 4C of the Spinning frame is shown provided with three bearings one of which is in the portion 5 and the other two of which 6 and 7 are in the portion 8 adjustably mounted on the stand.

In Fig.' 6 a strand 9 of roving is shown running through the usual trumpet 10 and over the feed rolls.

Three feed rolls are illustrated but as members cooperating with the similar alined concentric cylindrical bore sections of the roll member secured the absolute axial alinement of the bearing and roll members while Mthe `cooperating eccentric section 1G of the bearing members and eccentric section 20 of the bore of the roll member lock the two each is of the same construction but one need members together when rotation takes place be described in detail. A.and insure the members turning in unison. Y `The feed roll is made up of a plurality rlhe fact that the eccentric portion is beof roll members 11, one entire roll member tween two alined concentric cylindrical porand the adjacent ends of two others being tions insures the axial alinement of the shown in Fig. 1 in each case, and a plurality members even it there be any slight inaccuof bearing members 12 between and con racy in construction. The arrangement oi the necting each pair of adjacent roll members concentric portions one adjacent to the bear- Each roll member is provided with a pluing and the other at the end of the bearing rality of roving or strand engaging zone member secures a concentric engagement of 13 which as shown are usually longitudi--n the parts on a theoretical line equal to the nally corrugated or striated. :full length of the projecting portion of the Each bearing member (see Fig. 2) com bearing member. The roll members extend prises a central cylindrical bearing sectionk .l in one piece, that is, without joints, be- 14 which tits and rotates in the bearing iny tween the adjacent bearing members, so that the stand 4. The bearing section 14 is shown the construction provides a continuous feed as extending at 15 beyond the bearing in roll ot single roll members extending bethe frame and these ends are preferably ot tween the several bearings and coupled to the same diameter as the bearing section each other through the intermediate bearproper 14 but so long as they are concen-' ings by means oi' the bearing members tric with the bearing portion proper 14 the which, as stated above, will usually be oi diameter is not essential. l dilierent material from the roll members At veach side of the bearingl section are and hardened and ground so as to make the cylindrical sections 16 which are eccentric bearing of great accuracy and durability at to the bearing section 14 and have their the only points where there is any substanperipheries lying within the periphery ot tial wear in the length of the roll. the bearing section. The assembling ot the parts thus becomes The end sections 17 of the bearing memperfectly simple. No hammering or driving ber are formed concentric o1 the bearing secto tit the parts together is required. |lhe tion 14 and the periphery of each end secbearing member and the roll member are tion lies Within the periphery of the adjasimply slid together and dropped into place. cent eccentric section 16. In the operation of the machine the entire 1t will thus be seen that the bearing memlength of feed roll runs with accuracy and ber as a whole is a separate member of the there is no wabbling or unevenness in the feed roll and lmay be readily hardened or rotation. 1f a bearing wears and requires treated as required by conditions. This rehardening, repair or renewal the bearing bearing member may also readily be finished member is readily removed and replaced byl turning or grinding before and after and the same way it a roll member becomes hardening and may be constructed with as injured from any cause it is readily regreat accuracy as required. moved, repaired or renewed and replaced. The roll members are formed at their Having fully described my invention, ends to coperate with and lit the ends of what 1 claim as new and desire to secure the bearing members. Hence each roll by Letters Patent is: member at its end adjacent a bearing mem- The combination, in a spinning machine, ber presents a bore having an outer cylinot teed rolls and bearings therefor, each drical section 18 fitting the end section 15 feed roll comprising a. plurality of roll memofthe bearing member, an inner cylindrical bers 11 and bearing members 12, said roll concentric section 19 fitting the end section members being identical. with one another 17 of the lbearing member, and an interand each comprising a single integral memmediate cylindrical eccentric section 2O iitber 11 located entirely between adjacent ing the corresponding intermediate eccentric bearings, and said bearing members 12 besection 16 of the bearing member. ing arranged one in each bearing and con- These sections may obviously be readily necting together the roll members on oppotermed by drilling or milling tools with as site sides of said bearing, said bearing memgreat accuracy as is desirable. bers being separate from the roll members 1,When-the bearing members are fitted into so that they may be of different material the roll membersthe alined concentric cylinand treatment therefrom, each of the interdrical sections 15 and `A17 of the bearing mediate bearing members comprising a central bearing portion and having on each side of such portion and projecting from each side of the bearing an identical rollmember engaging portion comprising a pair of cylindrical portions concentric With the bearing, one adjacent to the bearing and the other at the end of the bearing member so as to secure a concentric engagement to j the roll member on a line equal to the full length of the said roll-memberengaging portion, and a third portion intermediate between and eccentric to said pair, and the adjacent ends of the roll members having portions fitting over the entire projecting portions of the bearing members, whereby a continuous feed roll is secured made up of single roll members extending the entire distance between each pair of bearings and coupled to each other through the intermediate bearings by meanso1 said bearing members.

ln testimony whereof` I have slgned my `name to this specification.

CHARLES R. SYLVANDER.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patente. Washington, IL C. 

